CN202136798U

CN202136798U - Yo-yo

Info

Publication number: CN202136798U
Application number: CN201120237100U
Authority: CN
Inventors: 蔡心炯
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-07-05
Filing date: 2011-07-05
Publication date: 2012-02-08
Anticipated expiration: 2021-07-05

Abstract

A yo-yo comprises two turntable bodies, a rotating shaft and two bearings used for binding a yo-yo rope, a central spindle connected with the two turntable bodies, and a hollow rotating shaft in the middle, wherein an annular groove is formed in the center of the hollow rotating shaft, and the rope can not shift to the left or the right when the yo-yo is played, thus enhancing the left and right balance, and causing the yo-yo to be free in releasing and tightening; and the running of the two bearings causes the idling lasting time of the yo-yo to be longer so as to change more forms, thus increasing the playing fun of the user.

Description

Climbing top Yo-Yo

Technical field

The utility model belongs to a kind of toy, is specifically related to a kind of Climbing top Yo-Yo of the usefulness of playing.

Background technology

Climbing top Yo-Yo is a kind of toy that liked by the teenager.Climbing top Yo-Yo has multiple object for appreciation plays tricks, and wherein dallying, sleeping is one of common style, how to prolong idle running, the length of one's sleep, and the Climbing top Yo-Yo diligent target of pursuing of master-hand of playing still is not the problem that Climbing top Yo-Yo manufacturer is constantly explored yet.Existing Climbing top Yo-Yo, two rotary cases are connected by a rotating shaft, are provided with intermediate bearing in the centre of rotating shaft, and long rope sling is on the outer ring of intermediate bearing.There is following problem in existing above-mentioned Climbing top Yo-Yo: though 1 a bearing is installed; But rotation friction is still bigger; Make the persistence of existing Climbing top Yo-Yo sleep action after reaching certain hour length, just be difficult to attain a yet higher goal again; No matter the player that level is how superb can't overcome because frictional force causes the problem that the length of one's sleep, persistence was not grown greatly; 2, because the outer ring outer surface smoother of plain bearing; Bind skew, off normal about the rope of bearing outside surface is easy to, make the left and right sides balance of Climbing top Yo-Yo poor, in order to address this problem; Though in recent years people in the outer ring of bearing outer surface processed a circle along the annular groove that circumferentially extends; To a certain degree solving the unbalanced problem in the left and right sides, still, annular groove is provided with the outer ring of bearing and can brings following deficiency: a, make Climbing top Yo-Yo manufacturer can't adopt common standard rolling bearing; And must have the bearing that has annular groove specially made to order, and this bearing can improve complex manufacturing, production cost owing to the surface has groove; Even b is provided with annular groove in the outer ring of bearing; The degree of depth of this annular groove also receives the restriction of Production of bearing technology, bearing material, bearing arrangement; Thereby the degree of depth of annular groove is generally more shallow; Thereby the effect of skew is barely satisfactory about preventing, playing still is not easy to hold and control.

Summary of the invention

The purpose of the utility model is to overcome above-mentioned shortcoming and a kind of Climbing top Yo-Yo is provided, and it can make the time of Climbing top Yo-Yo idle running sleep longer, and makes manufacturing conveniently of Climbing top Yo-Yo.

Its purpose can realize by following scheme: this Climbing top Yo-Yo comprises two rotary cases, the rotating shaft that is used to bind long rope, bearing, elastic washer, it is characterized in that: said rotating shaft is a hollow rotating shaft; The quantity of said bearing has two, and each rotary case utilizes one of them bearing to be installed in a wherein end of hollow rotating shaft; Elastic washer quantity has two, respectively is installed on two rotating disks, in the cavity of hollow rotating shaft, is provided with a mandrel in addition, and two rotary cases are fixed together by this mandrel and rotate synchronously; The external diameter of mandrel is less than the internal diameter of hollow rotating shaft.

Be preferably, the outer ring of each bearing is fixedly connected with a corresponding rotary case, and the inner ring of bearing then is fixedly connected with a corresponding end of hollow rotating shaft.

Be more preferably, be formed with the annular groove that extends along circumferentially on the outer surface of hollow rotating shaft, the centre position of this annular groove between two rotary cases.

The utlity model has following advantage and effect:

1, in the structure of traditional Climbing top Yo-Yo, each bearing need carry the weight of two rotary cases; And in the structure of the utility model; Each bearing only need carry the weight of a rotary case; Thereby the weight of each loading ability of bearing of the utility model equals 1/2 of traditional structure; Therefore the rotation friction of each bearing correspondingly equals 1/2 of traditional structure during rotation, can prolong idle running significantly, and play master-hand's technical ability of Climbing top Yo-Yo can be brought into play greatly.

Though each rotary case of 2 the utility model is installed a bearing separately, still can keep synchronous rotation between two rotary cases, guarantee the stability of whole Climbing top Yo-Yo.

3, the utility model need not to form annular groove at bearing outside surface, therefore need not to select for use special bearing customized, and can adopt common bearing, reduces production costs.

4, the central authorities of hollow rotating shaft are provided with and are formed with annular groove, and the Climbing top Yo-Yo skew about rope is not understood in the process that is at play strengthens left and right sides balance, and Climbing top Yo-Yo is acted freely, and increases the enjoyment that the user is at play.

Description of drawings

Fig. 1 is the overall structure sketch map of the utility model

Fig. 2 is the each several part structural representation of the utility model

Fig. 3 is the cross-sectional view of a kind of specific embodiment of the utility model.

The specific embodiment

Climbing top Yo-Yo shown in Figure 1 comprises two rotary cases 1, is used to bind the hollow rotating shaft 2 of long rope, passes the mandrel 4 that hollow rotating shaft 2 connects two rotary cases 1.

Climbing top Yo-Yo shown in Figure 2 comprises 5, two bearings 3 of 1, two caoutchouc elasticity packing ring of two rotary cases, is used to the mandrel 4 that binds the hollow rotating shaft 2 of long rope and connect two rotary cases 1.

Climbing top Yo-Yo shown in Figure 3: each rotary case 1 utilizes one of them bearing 3 to be installed in a wherein end of hollow rotating shaft 2; The outer ring of each bearing 3 is fixedly connected with a corresponding rotary case 1; Each packing ring 5 is installed on the rotary case 1, and the inner ring of bearing 3 then is fixedly connected with a corresponding end of hollow rotating shaft 2.In the cavity of hollow rotating shaft 2, also being provided with 4, two rotary cases 1 of a mandrel is fixed together and can be rotated synchronously by this mandrel 4; The external diameter of mandrel 4 is less than the internal diameter of hollow rotating shaft 2.

On the outer surface of hollow rotating shaft 2, be formed with the annular groove 11 that extends along circumferentially, the centre position of this annular groove 11 between two rotary cases 1.

When the foregoing description used, long rope bound annular groove 11 positions at hollow rotating shaft 2.

Claims

1. a Climbing top Yo-Yo comprises two rotary cases, the rotating shaft that is used to bind long rope, bearing, it is characterized in that: said rotating shaft is a hollow rotating shaft; The quantity of said bearing has two, and each rotary case utilizes one of them bearing to be installed in a wherein end of hollow rotating shaft; In the cavity of hollow rotating shaft, also be provided with a mandrel, two rotary cases are fixed together by this mandrel and rotate synchronously; The external diameter of mandrel is less than the internal diameter of hollow rotating shaft.

2. Climbing top Yo-Yo according to claim 1 is characterized in that: the outer ring of each bearing is fixedly connected with a corresponding rotary case, and the inner ring of bearing then is fixedly connected with a corresponding end of hollow rotating shaft.

3. Climbing top Yo-Yo according to claim 1 and 2 is characterized in that: be formed with the annular groove that extends along circumferentially on the outer surface of hollow rotating shaft, the centre position of this annular groove between two rotary cases.